2X Pack HNN9628 Battery for Motorola GP300 CP450 GTX Two-Way Radio

In this review the UpStart Battery 2X Pack HNN9628 replacement batteries are examined for users who need reliable, budget-friendly power for legacy Motorola two-way radios. The bottom line: these 7.5 V, 1200mAh Ni-CD replacements are best for field crews, security teams, or hobbyists who own models like GP300 or CP450 and want a cost-effective way to restore runtime without buying expensive originals. The review focuses on fit, capacity, and real-world usability over a full workday.

Key Features

• Direct replacement compatibility: Designed to replace Motorola HNN8133C and HNN9628 style batteries to restore power for a wide range of handheld radios without modification.
• Two-pack convenience: Supplied as a pair so users can keep one battery charging while the other is in use, reducing downtime in continuous-coverage situations.
• Reliable chemistry: Nickel-cadmium construction delivers stable output and tolerance for heavy charge/discharge cycles typical in professional radio use.
• Practical capacity: The 1200mAh rating gives predictable runtime for older radios, making shift planning and rotation easier for teams using multiple units.
• Cost-effective alternative: Offers a lower-cost replacement option compared with factory parts while matching the required 7.5 V specification for supported models.
• Wide model support: Works with many Motorola part numbers and models including GP300, CP450, GTX series, Radius and other listed legacy radios.

Who It's For

This pack is aimed at professionals and enthusiasts who operate legacy Motorola portable radios and need a dependable replacement without paying a premium for OEM-branded cells. It suits security teams, event staff, construction crews, and radio hobbyists who manage multiple units and require extra batteries to maintain continuous operation.

It is not ideal for users who require the very latest battery chemistry like Li-ion for lighter weight or higher energy density, or for radios that specifically require factory-trimmed packs with proprietary connectors not listed among the supported models. Buyers should confirm model compatibility before purchase.

Pros & Cons

Pros

• Affordable two-pack reduces per-battery cost and keeps a spare ready for long shifts.
• Matches the 7.5 V and 1200mAh specs expected by many Motorola legacy portables for predictable performance.
• Ni-CD chemistry tolerates repeated charge cycles common in daily professional use.
• Broad compatibility across many OEM model numbers and radio series simplifies inventory.

Cons

• Ni-CD batteries are heavier and have lower energy density than modern Li-ion alternatives, so runtime per weight is limited.
• Not suitable for radios requiring newer proprietary packs or different voltage/capacity specifications.

Specifications

Quantity	Two batteries
Chemistry	NI-CD
Output Voltage	7.5 V
Capacity	1200 mAh
Brand	UpStart Battery
Compatible Models	Motorola GP300, CP450, GTX series and listed OEM numbers

Our Verdict

The UpStart Battery 2X Pack HNN9628 is a practical, value-oriented replacement for users maintaining legacy Motorola handsets who prioritize cost and dependable, proven Ni-CD performance. It restores expected voltage and capacity for many GP300 and CP450 style radios, and the two-pack format is especially useful for those who need continuous operation with minimal downtime.

Frequently Asked Questions

Will these batteries fit my GP300?
Yes, the pack is designed to replace HNN9628 style batteries used in GP300 models, but confirm the exact battery housing in your radio matches the listed replacements.

How long will the 1200mAh battery last?
Runtime depends on radio transmit duty cycle and power settings; 1200mAh provides predictable, modest runtime suitable for normal professional use but less energy per weight than modern Li-ion cells.

Are chargers included?
Chargers are not included; these are replacement battery packs only and will use the original or compatible charger for the radio model.